In all honestly I did come up with the method for attaching the shelves on my own but waited quite some time before deciding I wanted to share the model with others when I went online and looked up similar models, I saw this other one that was almost identical so rather than trying to take credit for it ill just say mines a remix to be fair to J3DMaker
Print settings:
.28mm Layer Height
10% Infill with Adaptive cubic
3 Walls
The author remixed this model.
Much Larger model with cleaner interior